<template>
  <div class="app-container">
    <basic-container>
      <!--工具栏-->
      <div class="head-container">
        <div v-if="crud.props.searchToggle">
          <!-- 搜索 -->
          <el-input v-model="query.blurry" size="small" clearable placeholder="输入名称或者描述搜索" style="width: 200px;" class="filter-item" @keyup.enter.native="crud.toQuery" />
          <el-date-picker
                  v-model="query.createTime"
                  :default-time="['00:00:00','23:59:59']"
                  type="daterange"
                  range-separator=":"
                  size="small"
                  class="date-item"
                  value-format="yyyy-MM-dd HH:mm:ss"
                  start-placeholder="开始日期"
                  end-placeholder="结束日期"
          />
          <rrOperation />
        </div>
        <crudOperation :permission="permission" :roleFlag='roleFlag'/>
      </div>
      <!-- 表单渲染 -->
      <el-dialog append-to-body :close-on-click-modal="false" :before-close="crud.cancelCU" :visible.sync="crud.status.cu > 0" :title="crud.status.title" width="520px">
        <el-form ref="form" :inline="true" :model="form" :rules="rules" size="small" label-width="80px">
          <el-form-item label="角色名称" prop="name">
            <el-input v-model="form.name" style="width: 380px;" />
          </el-form-item>
          <el-form-item label="角色级别" prop="level">
            <el-input-number v-model.number="form.level" :min="1" controls-position="right" style="width: 145px;" />
          </el-form-item>
          <el-form-item label="数据范围" prop="dataScope">
            <el-select v-model="form.dataScope" style="width: 140px" placeholder="请选择数据范围" @change="changeScope">
              <el-option
                      v-for="item in dateScopes"
                      :key="item"
                      :label="item"
                      :value="item"
              />
            </el-select>
          </el-form-item>
          <el-form-item v-if="form.dataScope === '自定义'" label="数据权限" prop="depts">
            <treeselect
                    v-model="form.depts"
                    :load-options="loadDepts"
                    :options="depts"
                    noOptionsText='暂无'
                    noResultsText="暂无结果"
                    multiple
                    style="width: 380px"
                    placeholder="请选择"
            />
          </el-form-item>
          <el-form-item label="描述信息" prop="description">
            <el-input v-model="form.description" style="width: 380px;" rows="5" type="textarea" />
          </el-form-item>
        </el-form>
        <div slot="footer" class="dialog-footer">
          <el-button @click="crud.cancelCU">取消</el-button>
          <el-button :loading="crud.status.cu === 2" type="primary" @click="crud.submitCU">确认</el-button>
        </div>
      </el-dialog>
      <el-row :gutter="15">
        <!--角色管理-->
        <el-col :xs="24" :sm="24" :md="16" :lg="16" :xl="17" style="margin-bottom: 10px">
          <el-card class="box-card" shadow="never">
            <div slot="header" class="clearfix">
              <span class="role-span">角色列表</span>
            </div>
            <el-table ref="table" v-loading="crud.loading" highlight-current-row style="width: 100%;" :data="crud.data" @selection-change="crud.selectionChangeHandler" @current-change="handleCurrentChange">
              <!-- <el-table-column :selectable="checkboxT" type="selection" width="55" /> -->
              <el-table-column prop="name" label="名称" />
              <el-table-column prop="dataScope" label="数据权限" />
              <el-table-column prop="level" label="角色级别" />
              <el-table-column :show-overflow-tooltip="true" prop="description" label="描述" />
              <el-table-column :show-overflow-tooltip="true" width="150px" prop="createTime" label="创建日期">
                <template slot-scope="scope">
                <span>{{ parseTime(scope.row.createTime) }}</span>
                </template>
              </el-table-column>
              <el-table-column v-permission="['admin','roles:edit','roles:del']" label="操作" width="130px" align="center" fixed="right">
                <template slot-scope="scope">
					<udOperation
						v-if="scope.row.level >= level"
						:data="scope.row"
						:permission="permission"
					/>
                </template>
              </el-table-column>
            </el-table>
            <!--分页组件-->
            <pagination />
          </el-card>
        </el-col>
        <!-- 菜单授权 -->
        <el-col :xs="24" :sm="24" :md="8" :lg="8" :xl="7">
          <el-card class="box-card" shadow="never">
            <div slot="header" class="clearfix">
              <el-tooltip class="item" effect="dark" content="选择指定角色分配菜单" placement="top">
                <span class="role-span">菜单分配</span>
              </el-tooltip>
              <el-button
                v-permission="['admin','roles:edit']"
                :disabled="!showButton"
                :loading="menuLoading"
                icon="el-icon-check"
                size="mini"
                style="float: right; padding: 6px 9px"
                type="primary"
                @click="saveMenu"
              >保存</el-button>
            </div>
            <el-tree
                ref="menu"
                lazy
                :data="menus"
                :default-checked-keys="menuIds"
                :load="getMenuDatas"
                :props="defaultProps"
                check-strictly
                accordion
                show-checkbox
                node-key="id"
                @check="menuChange"
            />
          </el-card>
        </el-col>
      </el-row>
    </basic-container>
  </div>
</template>

<script>
import crudRoles from '@/api/system/role'
import { getDepts, getDeptSuperior } from '@/api/system/dept'
import { getMenusTree } from '@/api/system/menu'
import CRUD, { presenter, header, form, crud } from '@crud/crud'
import rrOperation from '@crud/RR.operation'
import crudOperation from '@crud/CRUD.operation'
import udOperation from '@crud/UD.operation'
import pagination from '@crud/Pagination'
import Treeselect from '@riophae/vue-treeselect'
import '@riophae/vue-treeselect/dist/vue-treeselect.css'
import { LOAD_CHILDREN_OPTIONS } from '@riophae/vue-treeselect'

const defaultForm = { id: null, name: null, depts: [], description: null, dataScope: '全部', level: 1 }
export default {
  name: 'Role',
  components: { Treeselect, pagination, crudOperation, rrOperation, udOperation },
  cruds() {
    return CRUD({ title: '角色', url: 'api/roles', sort: 'level,asc', crudMethod: { ...crudRoles }})
  },
  mixins: [presenter(), header(), form(defaultForm), crud()],
  data() {
    return {
        defaultProps: { children: 'children', label: 'label', isLeaf: 'leaf' },
        roleFlag: true,
        dateScopes: ['全部', '本级', '自定义'], level: 3,
        currentId: 0, menuLoading: false, showButton: false,
        menus: [], menuIds: [], depts: [],
        permission: {
            add: ['admin', 'roles:add'],
            edit: ['admin', 'roles:edit'],
            del: ['admin', 'roles:del']
        },
        rules: {
        name: [
            { required: true, message: '请输入名称', trigger: 'blur' }
        ],
        permission: [
            { required: true, message: '请输入权限', trigger: 'blur' }
        ]
        }
    }
  },
  created() {
    crudRoles.getLevel().then(data => {
        this.level = data.level
    })
  },
  methods: {
    getMenuDatas(node, resolve) {
        setTimeout(() => {
            getMenusTree(node.data.id ? node.data.id : 0).then(res => {
                resolve(res)
            })
        }, 100)
    },
    [CRUD.HOOK.afterRefresh]() {
        this.$refs.menu.setCheckedKeys([])
    },
    // 编辑前
    [CRUD.HOOK.beforeToEdit](crud, form) {
        if (form.dataScope === '自定义') {
            if (form.id == null) {
                this.getDepts();
            } else {
                this.getSupDepts(form.depts);
            }
        }
        const depts = [];
        form.depts.forEach(function(dept, index) {
            depts.push(dept.id);
        })
        form.depts = depts
    },
    // 提交前做的操作
    [CRUD.HOOK.afterValidateCU](crud) {
        if (crud.form.dataScope === '自定义' && crud.form.depts.length === 0) {
            this.$message({
                message: '自定义数据权限不能为空',
                type: 'warning'
            })
            return false;
        } else if (crud.form.dataScope === '自定义') {
        const depts = []
        crud.form.depts.forEach(function(data, index) {
            const dept = { id: data };
            depts.push(dept);
        })
            crud.form.depts = depts
        } else {
            crud.form.depts = []
        }
        return true;
    },
    [CRUD.HOOK.afterAddError](crud) {
        this.afterErrorMethod(crud)
    },
    [CRUD.HOOK.afterEditError](crud) {
        this.afterErrorMethod(crud)
    },
    afterErrorMethod(crud) {
        const depts = [];
        crud.form.depts.forEach(function(dept, index) {
            depts.push(dept.id)
        })
        crud.form.depts = depts
    },
    // 触发单选
    handleCurrentChange(val) {
      if (val) {
        const _this = this
        // 清空菜单的选中
        this.$refs.menu.setCheckedKeys([])
        // 保存当前的角色id
        this.currentId = val.id
        this.showButton = this.level <= val.level
        // 初始化
        this.menuIds = [];
        // 菜单数据需要特殊处理
        val.menus.forEach(function(data, index) {
          _this.menuIds.push(data.id)
        })
      }
    },
    menuChange(menu) {
        // 判断是否在 menuIds 中，如果存在则删除，否则添加
        const index = this.menuIds.indexOf(menu.id);
        if (index !== -1) {
            this.menuIds.splice(index, 1);
        } else {
            this.menuIds.push(menu.id);
        }
    },
    // 保存菜单
    saveMenu() {
        this.menuLoading = true;
        const role = { id: this.currentId, menus: [] }
        // 得到已选中的 key 值
        this.menuIds.forEach(function(id) {
            const menu = { id: id }
            role.menus.push(menu)
        })
        crudRoles.editMenu(role).then(() => {
            this.crud.notify('保存成功', CRUD.NOTIFICATION_TYPE.SUCCESS)
            this.menuLoading = false
            this.update()
        }).catch(err => {
            console.log(err);
            this.menuLoading = false
        })
    },
    // 改变数据
    update() {
      // 无刷新更新 表格数据
        crudRoles.get(this.currentId).then(res => {
            for (let i = 0; i < this.crud.data.length; i++) {
                if (res.id === this.crud.data[i].id) {
                    this.crud.data[i] = res
                    break
                }
            }
        })
    },
    // 获取部门数据
    getDepts() {
        getDepts({ enabled: true }).then(res => {
            this.depts = res.content.map(function(obj) {
                if (obj.hasChildren) {
                    obj.children = null
                }
                return obj
            })
        })
    },
    getSupDepts(depts) {
        const ids = []
        depts.forEach(dept => {
            ids.push(dept.id)
        })
        getDeptSuperior(ids).then(res => {
            this.depts = res.content.map(function(obj) {
                if (obj.hasChildren && !obj.children) {
                    obj.children = null
                }
                return obj
            })
        })
    },
    // 获取弹窗内部门数据
    loadDepts({ action, parentNode, callback }) {
      if (action === LOAD_CHILDREN_OPTIONS) {
        getDepts({ enabled: true, pid: parentNode.id }).then(res => {
          parentNode.children = res.content.map(function(obj) {
            if (obj.hasChildren) {
                obj.children = null
            }
            return obj;
            })
            setTimeout(() => {
                callback()
            }, 200)
        })
      }
    },
    // 如果数据权限为自定义则获取部门数据
    changeScope() {
        if (this.form.dataScope === '自定义') {
            this.getDepts()
        }
    },
    checkboxT(row, rowIndex) {
        return row.level >= this.level
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
  .role-span {
    font-weight: bold;color: #303133;
    font-size: 15px;
  }
</style>

<style rel="stylesheet/scss" lang="scss" scoped>
  /deep/ .el-input-number .el-input__inner {
    text-align: left;
  }
  /deep/ .vue-treeselect__multi-value{
    margin-bottom: 0;
  }
  /deep/ .vue-treeselect__multi-value-item{
    border: 0;
    padding: 0;
  }
</style>
